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The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are:
- Physics and mechanics of electromagnetic materials and devices
- Computational electromagnetic in materials and devices
- Applications of electromagnetic fields and forces
The three interrelated key subjects - materials, electromagnetics and mechanics - include the following aspects: control, micromachines, intelligent structure, inverse problem, eddy current analysis, electromagnetic NDE, magnetic materials, magnetoelastic effects in materials, bioelectromagnetics, magnetosolid mechanics, magnetic levitations, applied physics of superconductors, superconducting magnet technology, superconducting propulsion system, nuclear fusion reactor components and wave propagation in electromagnetic fields.
Article Type: Editorial
Abstract: Preface to the Proceedings of the twelfth International Symposium on Interdisciplinary Electromagnetic, Mechanic and Biomedical Problems, ISEM Bad Gastein.
DOI: 10.3233/JAE-2007-894
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 1-2, 2007
Authors: Grössinger, R. | Van Duong, Giap | Bueno-Baqués, D.
Article Type: Research Article
Abstract: A survey of the development of magnetoelectric materials is given. The limitations of single phase materials is shown. The concept of magnetoelectric composites will be discussed. A measuring method based on modulating the dc-field and using a lock-in amplifier for determining the magnetoelectric coefficient is described. Results obtained for a composite of 50% BaTiO_3 and 50%CoFe_2 O_4 are demonstrated.
Keywords: Magnetoelectric materials, measuring methods
DOI: 10.3233/JAE-2007-830
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 3-11, 2007
Authors: Demin, Roman | Koroleva, Lioudmila | Zashchirinski, Denis | Kozlov, Aleksey | Mukovskii, Yakov | Glazyirin, Konstantin
Article Type: Research Article
Abstract: Giant volume magnetostriction ω is found in La_{1-x} Ba_{x} MnO_{3} manganites attained of 4 × 10^{-4} in a magnetic field H=8.2 kOe near Curie point T_{C} . In La_{0.7} Ba_{0.3} MnO_{3} ω achieves of giant value of 2.54 × 10^{-4} at temperature T=300 K. Volume magnetostriction and magnetoresistance exhibit similar dependence on T and H in T_{C} …– region that is explained by the presence in these single crystals of magnetic two-phase ferromagnetic – antiferromagnetic state due to strong s-d exchange. Show more
Keywords: Thermal expansion, volume magnetostriction, colossal magnetoresistance, manganite
DOI: 10.3233/JAE-2007-844
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 13-17, 2007
Authors: Ikariga, Atsushi | Shimoji, Hiroyasu | Todaka, Takashi | Enokizono, Masato
Article Type: Research Article
Abstract: This paper presents a novel permanent-magnet rotor for surface permanent magnet synchronous motors (SPMSM). In order to achieve larger power of SPMSM in limited volume as small as possible, use of a high-magnetic flux condition in designing is investigated. To generate higher magnetic flux density in the air-gap, a new segment type permanent-magnet rotor is proposed. The magnetic characteristics are analysed in detail with the 2-D finite element method, and the calculated results are compared with …the experimental results of the prototype machine. The results show that the peak flux density is doubled and the back-EMF becomes a nearly sinusoidal waveform. Show more
Keywords: SPMSM (surface permanent magnet synchronous motor), pole-oriented anisotropic magnet, Halbach
DOI: 10.3233/JAE-2007-836
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 19-23, 2007
Authors: Nishida, Hitoshi | Shimada, Kunio | Goto, Makoto
Article Type: Research Article
Abstract: We propose a technique for polishing inner capillary walls made of non-magnetic material utilizing a magnetic compound fluid. The principle and polishing characteristics are discussed. The fluid used has the features of both magnetic fluids and magneto-rheological fluids as it is a mixture of the two. Our polishing system employs a rotating field applied vertically with respect to the capillary in order to best utilize the fluid characteristics. The polishing mechanism involves abrasive particles aggregating at …a certain section of the polished wall. Polishing is performed using magnetic pressure and magnetic clusters. Show more
Keywords: Polishing, inner capillary wall, magnetic compound fluid, rotating magnetic field
DOI: 10.3233/JAE-2007-850
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 25-29, 2007
Authors: Daniel, Laurent | Hubert, Olivier | Vieille, Bertrand
Article Type: Research Article
Abstract: Micromagnetic models are usually based on energetic minimisation procedures at the magnetic domains scale. Two main difficulties associated to these approaches concern the determination of local stress and magnetic field. This key point, defined through specific localisation and homogenisation procedures, is discussed. A comparison between a recently proposed multiscale modelling and experimental data collected from isotropic Ni-Zn ferrites is finally presented as an illustration.
Keywords: Magneto-elastic couplings, magnetostriction, multiscale modelling
DOI: 10.3233/JAE-2007-823
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 31-36, 2007
Authors: Hison, Cornelia | Ausanio, Giovanni | Iannotti, Vincenzo | Lanotte, Luciano | Breglio, Giovanni | Cusano, Andrea | Giordano, Michele
Article Type: Research Article
Abstract: The deformation induced by a magnetic field in a composite material made of permanently magnetized Sm_{2} Co_{7} micro-particles uniformly dispersed into an elastomer matrix is directly evaluated using a Fiber Bragg-Grating (FBG) sensor. This experimental measurement permits to verify the previously developed model of the direct elastomagnetic effect. The good agreement between the experimental results and the theoretical predictions gives the deffinitive validation of the model of the direct …elastomagnetic effect in composites made of magnetic micro-particles inside an elastomer matrix. This feature is fundamental for the development of deformation actuators based on these materials with peculiar elastomagnetic and mechanical performances. Show more
Keywords: Direct elastomagnetic effect, elastomagnetic composite, Fiber Bragg-Grating (FBG) sensor, actuator core material
DOI: 10.3233/JAE-2007-893
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 37-41, 2007
Authors: Taskaev, Sergey | Buchelnikov, Vasiliy | Takagi, Toshiyuki
Article Type: Research Article
Abstract: In this work with the help of the phenomenological Ginzburg-Landau theory the phase diagram of structural and magnetic phase transitions of a cubic ferromagnet with the external stress along [110] axis was theoretically investigated.
Keywords: Ferromagnetic materials, structural and magnetic phase transitions, shape memory effect, magnetostriction
DOI: 10.3233/JAE-2007-887
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 43-47, 2007
Authors: Ohji, Takahisa | Sugiura, Ken | Amei, Kenji | Sakui, Masaaki
Article Type: Research Article
Abstract: This paper reports novel magnetic bearing structures with the function of a bearingless motor (BeLM) and a repulsive type magnetic bearing (RTMB). The structures consist of circular arc permanent magnets for field poles and cylindrical permanent magnets for magnetic bearings. Two types of permanent magnet configurations suitable for an ultra high-speed motor are proposed in this paper. From measurement results of magnetic flux density distributions, it was verified that a magnetic pole composition using Halbach …array leads to good coexistence of both BeLM and RTMB. Show more
Keywords: Magnetic bearing, permanent magnet, bearing less motor, repulsive type magnetic bearing
DOI: 10.3233/JAE-2007-879
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 49-53, 2007
Authors: Todaka, Takashi | Yasuoka, Teruo | Enokizono, Masato | Tsutsumi, Kenji | Groessinger, Roland | Turtelli, R. Sato | Nunes, Christina | Wiesinger, Guenter
Article Type: Research Article
Abstract: New ferromagnetic shape memory alloys have been developed by means of melt spinning technique. The alloys are multi-functional materials, which have both ferromagnetic property and shape memory property. In order to append the ferromagnetic function of nonmagnetic Fe-Mn-Cr alloys, we have selected neodymium as an addition element. The magnetic properties of the alloys are improved by adding neodymium, however the shape memory properties are deteriorated at the same time. Also the Curie temperature shows increasing …tendency in proportion to the neodymium contentes. After many trials and measurements, we have sought out an alloy consisting of Fe-26%Mn-10%Cr-5%Si-0.7%Nd-0.2%B [wt%], which has good ferromagnetic and shape memory property. In this paper, the suitable heat treatment is made clear in measurements to raise the saturation magnetization in preserving the perfect shape memory recovery. Show more
Keywords: Ferromagnetic material, shape memory effect, phase diagram, Curie point, austenite transformation points
DOI: 10.3233/JAE-2007-837
Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 55-59, 2007
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